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Corridor

//ˈkɒɹɪdɔː// noun

Noun

1
A narrow hall or passage with rooms leading off it, as in a building or in a railway carriage.
"There is an hour or two, after the passengers have embarked, which is disquieting and fussy.[…]Stewards, carrying cabin trunks, swarm in the corridors. Passengers wander restlessly about or hurry, with futile energy, from place to place."
2
an enclosed passageway; rooms usually open onto it wordnet
3
A restricted tract of land that allows passage between two places.
"In addition, there are two up and two down korridorzug ^([sic]) [Korridorzüge] of the O.B.B. which run through from Innsbruck to Reutte via the Mittenwald line, but which are "sealed" between Scharnitz through Garmisch-Partenkirchen as far as Ehrwald, carrying passengers only from Austria to Austria; the korridor thus refers to the corridor through Germany and not through the train."
4
The covered way lying round the whole compass of the fortifications of a place. historical, rare
5
Airspace restricted for the passage of aircraft.

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Borrowed from French corridor, from Italian corridore (“long passage”) (= corridoio), from correre (“to run”).

Unscramble this word: corridor